Sawing-machine



(No Model.) 2 Sheets- Sheet 1.

L. A. DEUTHBR. SAWING MACHINE.

No. 605,406.a Patented June 7.1898.

Witnesses, 2/'1,0141 @MM Inventor.

8 By Attorney.

2 Sheets-Sheet 2.

(Nor Madiefh) DEUTHER.

SAWIENG MACHINE* No. 605,406. Badzll'd June '7, 1898.

Qu/wz 4. .0m Inventor.

vm/a/M Attorney.

Witnesses, /QZ @u @V677 f llNrTnn. STATES PATENT Urricn.

LORENZ A. DUTHER, or BUFFALO, NEW YORK.

sAwlNe-MAOHINE.

SPECIFICATION forming part of Letters Patent No. 605,406, dated June 7,1898. Applioationmiled J'unerZS, 1897. Serial No. 642,575. (No model.)

T0 all whom t may concern.'

Be it known thatI, LORENZ A. DEUTHER, a citizen of the United States,residing at Buffalo, in the county of Erie and State of New York, haveinvented certain new and useful Improvements in SaWing-Machines, ofwhich the following is a specification.

This invention relates to that class of sawing-machines in which a gangof reciprocat` ing-saws are employed for sawing morethan resents adetached enlarged side elevation of one of the cam-wheels for giving anintermittent feed motion to^the materialibeing sawed, showingaperipheral face view of the cam thereon. Fig. 4 represents a frontelevation of said cam-wheel, showinga side elevation of the camthereon.` Fig. 5 is a plan view showing the said cam-wheel and cam inengagement with the feeding gear-wheel.

Fig. 6 represents a plan View of the table-top,

showing a horizontal section on or about line oc, Fig. 1, the upperfeed-rollers and some portions of the mechanism being omitted,

showing also a slight modiication'in the` mechanism for adj Listing theupper feedrollers,as will appear farther on. Fig. 7 represents anenlarged side elevation of a portion of one of theadjustable plates forguiding the strips of Wood as they are being fed into the machine. Fig.8 represents a perspective view showing a portion of the upper and lowerholding-fingers between which the saws operate. Fig. 9 represents anenlarged portion of one of the saws and a portion of the gate to whichit is attached, showing also one of the saw-separating plates and themanner of attachment. Fig. 10 represents a section through a portion ofthe table-top, showing an end view of one of the adjustableguidingplates and the means for adjusting and se- Curin g it. Fig. 11represents a detached perspective view of one of thelower'saw-separating plates. Fig. 12 represents a side elevation of oneof 'the frames for carrying the feed-roller, a portion Ibeing brokenaway to show the adjusting-spring. Fig. 13 represents a front elevationof a -portion of the machineframe, showing one of the cross-bars towhich the forked saw-guide bars are attached. Fig. 14 represents adetached perspective View of one of the upper saw-separating plates. i

Referring to the drawings for the details of construction, in whichlikenumerals indicate like parts, 1 represents the three sidesupporting-frame pieces of the machine, which are preferably constructedof iron. They are heldtogether below the table by the braces 2 and atthe top bythe cross-head 3, all of which are rigidly secured togetherand to each other by screw-bolts in the usual way. The table isconstructed in twoparts 4 and 5, and the rear portion thereof ispreferably made removable.

A sawguide 6 is placed, between the front and rear table portions, whichis preferably constructed of Wood; but, if desired, it may be made oflany suitable metal or metal and Wood oombined,the wood being arranged toprevent contact between the metal portion and the saws. f

.Above the table is located another sawguide consisting of avertically-adjustable supporting cross-bar Gf, having bracketsproyided'with slots 7, through which the screwbolts Spass to secure itto the frame. (SeeV Fig. 13.) The slots 7 also allow for a verticaladjustment. To this cross-bar is bolted a series of Wooden fingers 9 9e.(See Figs. 8 and 13, where these ngers are shown.) The object of theseguides and fingers is to prevent the saws from being sprung.

The means for holding the saws consist of two saw gates or frames 9@ and9b. They are adapted to'slide vertically up and down in thesupporting-frames (see Figs. 1, 2, and 6) in slideways 10. (Shown insection in Fig. 6.) These grooved slideways 10 are iitted in the sides11 of the machine-framesl and when worn loose can be tightened by thescrew-bolts 12. (Shown in Fig. 6.) The saw-gates re IOO the lower endsofthe connecting-rods 13 being pivoted to the main crank -shaft Q15. (Seei Figs. 1 and 2.) The cranks on the crank-shaft are located so that onepair of cranks, 16, will l extend upward and the other pair, 16,willextend downward. (See Fig. 1.) This construetion tends to balance theaction of the sawgates and their connecting parts and thereby render theoperation ofl the machine morey side l,with a beveled rib 2l, extendinglength- (See Fig. i 2.) vOver these ribs the upper saw-spacing? platesl.23', that are placed 'between the saws@ to limit their distance apart,are hung `and wise, and at 'its top side is a rib y22;

are thereby secured to the bar, (see Fig. 14, where a detached viewofone of these upper spacing-plates is shown,) the part 24 on the plate 23tting over the top rib 22 and 4thef part 25 fitting over the bevel orlower rib 21. i

These spacing-plates are provided wit-h an opening26 to lighten them,and one is placed between each adjacent pair of saws, as indithe feed.

cated in Fig. 1.

The lower bar 19 is provided at its upper side with a beveled rib 27(see Fig. 2, alsoi Fig. and with a rib 28 at its under side. f

The lower saw-spacing plates 29, (see Fig. 1l, f where an enlargeddetached perspective view of one of the plates 29 is shown.) The part 30,is adapted to fit over the beveled rib 27, and i the part 31v fits overthe lower rib 28 and is g thereby securely held to the bar 19. Aprojecting finger or nose 31"L extends from the' lower right-hand cornerof each plate, andg the cross-bar 29e is provided with a longitudinalgroove which fits over the said noses 31?.

(See Fig. 9.) Each of these plates 29 is pro- .f

vided on one side with a beveled edge 300,

the object'of which is tolaifo'rd an inclinedv slideway down which thesawdust collected between the saws readily travels. This prevents thesawdust from getting between the sides of the spacing-plates and thesides of the saws and thus changing the alinement and relative positionof the saws. The crossbar `29e is provided with a bevelededge 29.f tocorrespond with the beveled face 30e. A series of these spacing-platesare used corresponding with the number of saws and alternate` betweenthem.

,After the saws are all in place, as in Fig. 41, and the space-plates inexact position a rod is p ut through the whole lower series ofspaceplates, which passes through the holes 32 (see Figs. 2, 9, and 11)and is then rigidly fastened bya screw-nut at each end, or a head at oneend and a nut at the other end, in the well-known way for such purposes.

At .the top the saws 18n are secured, with the plates 23 between them,to the bar 18, after which they are all rigidly fastened together bymeans of the screw bolts 33. (Shown in Fig. 6.) The saws are then drawntight by means of wedges 3ft in the usual way. (See Figs. 1 and 2.)

The saws 18n are set at a slight angle from the perpendicular-that is,the top end inclines slightly forward,substantially as shown in Figs. 2,8, and 9.

l It is welll known that a continuous forward feed of the material to besawed will move it just as fast against the saw while it is movingupward and not cutting as it does while it is moving downward andcutting. This ,operation is exceedingly objectionable, as it is liableto crowd and injure the saws and necessitates a comparatively slow feed.The object of this part of my invention is to avoid the seriousobjection above mentioned by so inc lining the saw that its teethgradually move back from the material to be sawed as the saw movesupward and employing an intermittent feed which carries the materialforward either as the saw is moving upward Aor has nearly completed itsupward movement and its' teeth receding from the material and thenholding said material stationary until the saw has made its downwardmovement and completed acut the length of In this/way I get a quickerfeed and cut with ease a larger amount in agiven time without crowdingthe saws, because each tooth as the saw moves downward c uts but a smallportion and. the Whole .combined provides the means for a much longercut during a down movement of the saw than could otherwise be given.

To bring both saw-gates, their saws, and several operating parts to abalance, I attach one or more weights 34' to the saw-gate at anyeonvenientpoint-for instance, atl the point 4shown in Fig. 1. In someinstances a less number of saws may be required in one gate than in theotherand vthe saws in o ne gate arranged at a greater distance from eachother than the saws in the other. Under these circumstances thebalancing-weights are absolutely necessary to balance the gates witheach other. `These weights are secured by a bolt 34, and a sufficientquantity only are put on to balance the gates. The upper feed-rollers 35and 35@ are shown in Figs. 1 and 2, and the lower feed-rollers are shownin Figs. 1, 2, and 6. The lower feed-rollers 36 and 364 are mounted inbearings in the table, so that their upper sides will be slightly aboveits surface, and the upper pairs of rollers 35 and 35a. are each mountedin a vertically-movable box 37, (see Fig. 2,) adapted to slide up ordown in the frame portion 38. l (See Figs. 1, 2, 6, and 12, particularlyFig. 12, where a larger view of this portion is shown.) Below the box 37are two springs 39 to hold the box and feedrollers upward. Centrallywithin Veach box 37 a strong spiral spring 40, which may be-a IOO IIO

`rubberspring, if desired, is placed, as shown in said Fig. 12, aportion being `in section to expose the spring. On the top of the springis placed a disk 4l, and at the top of the frame 38 is a screw 42,extending down to said disk and provided with a hand-wheel`43 foroperating itand giving the required pressure to the feed-rollers uponthe material to be sawed. It will be noticed by reference to Fig. 2 thatthe feed-rollers 35 and. 35 are lgeared together by an intermediategear-wheel 44, which engages with the gear-wheels 44a. The rollers 35nare each provided with a journal that" eX- tends ont and carries acrown-wheel 45-one at each side of the machine. (See Fig. 1.)

At each side of the machine issecured by bolts in the usual way an upperand lower bracket 46 and 462, `in which is mounted a vertical shaft 47.(Shown in Fig. 1.) i Near the lower end of each shaft i47 is rigidlyse-A cured a small spur-wheel 48, and at the top of said shaft issecured an elongated pinion 49, adapted to engage with the teeth in thecrown-wheels 45. (Shown `in Fig. 1'.) The elongated pinions 49 allow thefeed-rollers 35 and 35 to be adjusted sufficiently up or down withoutcoming out of engagement with the crown-wheels 45.

To each end of the crank-shaft 15 is rigidly secured a cam-wheel 50,provided with a cam This cam 51 extends nearly around the wheel and at51a inclines the width of a tooth to one side, the construction beingsuch that every time the cam-wheel turns once the wheel 4S is moved onetooth forward and the feed-rollers 35 and 35a are moved one feeding stepby means of the shaft 47 and connecting-gearing 45 and 49. The cam-wheel50 `is so timed or secured to the crank-shaftthat it gives the properfeed movement at the exact time required or at the time the saws havecompleted or nearly completed their upward movement.

The saw-table is provided with two longitudinal grooves 52 and 53 (seeFig. 6) and with a series of guide-plates 54 and 55. The plates 54 areeach provided with a side spring 56 and are adjustably and removably`secured to the table by means of a screw-portion 57 and a thumb-nut58.' (See Figs. `7 and lO.)

The object of the side springs 56 on the guide-plates is to hold thestrips or portions of material being sawed to one side and against theopposite or companion guide-` plate when required.

In order to remove the sawdust which collects between the side edges ofthe slatsduring `the operation of sawing, I provide the saw-table withan opening 59 (see Fig. 6) and mount a shaft 60, which adjustablysupports two ormore circular saws 61, in bearings on said table, so thatit passes centrally and longitudinally through said opening. These sawsare each providedwith a series of elon gated slots 62, which preferablyradiate from the center, substantially as shown in Fig. 2.

The side edges `of these slots are slightly bent or offset alternatelyto 'each side of the circular saws, and thus afford an additional meansfor removing the sawdust and also smoothing the side edges of the slatsafter they come from the reciprocating saws. Under some conditions thesawdust becomes packed and partially caked and the teeth on the circularsaws serve to cut and disintegrate the dust when in this partly-calledcondition. A pulley 63, mounted on the shaft 60, is connected by a belt64 with the drivingpulley 'e to operate the shaft 60.

It has been found by experience that the reciprocating saws, owing tothe fact that the cutting -is done in a downward direction,

leave small splinters and roughen the lower edges of the slats. Toremove the roughness and these splinters, a pl-aningor smoothing device,which is preferably an ordinary planer-cutter 65, is mounted on theshaft 60 between the circular saws. desired,a le-surface or sandpaperattached in any convenient manner to the machine 'maybe used in lieuthereof.

(See Fig. 6.) If

The main driving-pulley 66 (shownl in Fig.

1) is attached or connected by a belt or any other suitable means to thesource of power to drivethe machine.

The operation of the machine will be easily understood from theforegoing description and drawings.

I claim as my invention- ICO 1. In a sawing-machine, the 4combination ofthe slats as they come from the reciprocating saws, as set forth.

`2. In a sawing-machine, the' combination with the frame, thereciprocating saws and the saw-table, provided with an opening locatedat the rear of the reciprocating saws, of a shaft mounted in said tableand passing Ito through said opening, and one or more circular saws adjustablysu pported on said shaft to remove the caked sawdust frombetweenthe slats as they come from the reciprocating saws, as set forth.

3. In a sawing-machine, the combination with the frame, thereciprocating saws and the saw-table, provided with `an opening at therear of the reciprocating saws, `of`a shaft mounted in the vopening insaid table and passing through said opening and one or more circularsaws, adjustably supported on said shaft, said saws being provided witha series of slots or openings and having the side edges of said slotsslightly offset or bent alternately to each side to afford means toremove the sawdust and smooth the side edges of the slats as they comefrom the reciprocating saws, as set forth.

4. In a sawing-machine, the combination with the reciprocating saws andthe supporting saw-gates, of a 'series of spacing-plates placed betweenthe saws, each provided with a top edge inclining diagonally downwardlytoward the front and terminating in a projecting nose, and a reardepression or dovetail, a supporting portion iitting in said depressionordovetail, a cross-bar provided with a groove fitting over said noseand a screw device for rigidly securing said portion and cross-bar tothe saw-gates, as set forth.

5. In a sawing-machine, the combination with the supporting-frame,provided with a slideway portion and table, of a saw-gate, mounted insaid slideway and supporting a gang of reciprocating saws, a circularsaw mounted in the table at the rear of the reciprocating saws, toremove the sawdust from between the slats as they come from thereciprocating saws, and an operating-shaft inl connection with thesaw-gate and the circular saw, as set forth. i

6. In a sawing-machine, the combination with the reciprocating saws andthe supportg ing saw-gates, of a series of spacing-plates placed betweenthe saws, each provided with a depression and a projecting nose, asnpporting portion fitting in said depression, a

kcross-bar provided with a groove fitting over said nose and screw meansfor rigidly securing said portion and cross-bar to the sawgate's, as setforth.

7. In a double sawing-machine, the combination of the double frame, twosaw-gates mounted in slideways in said frame, a series of reciprocatingsaws supported in each gate, a driving-shaft, a cam at each end thereof,two cranks extending at diametrically opposite directions from saidshaft, two rods each pivotally connected at its lower end to one of thecranks and-at its upper end to one of the saw-gates, feed-rollersprovided with crownwheels, and rods having their lower ends providedwith gear-wheels engaging with the cams on the driving-shaft, and theirupper ends with pinions engaging with the crownwheels on thefeed-rollers, as set forth.

LORENZ A. DEUTHER.

Witnesses:

JAMES SANGSTER, G. A. NEUBAUER.

